Molar Mass Calculator
Calculate molar mass from any chemical formula.
About this tool
Enter any chemical formula — including nested parentheses like Ca(OH)2 or Al2(SO4)3 — to get its molar mass, with a full breakdown showing each element's contribution.
Key Features
- Handles subscripts and parentheses/groups
- Full per-element mass breakdown
- Covers the full periodic table through uranium
How to Use
- Type a chemical formula, using standard capitalization (Na, not NA).
- Click Calculate Molar Mass.
Benefits
- Find molar mass for stoichiometry and molarity calculations
- Check homework formulas quickly
- See exactly which elements contribute how much mass
Frequently Asked Questions
Type it exactly as shown, with parentheses and the subscript after the closing parenthesis — Ca(OH)2, Al2(SO4)3, and similar formulas with nested groups are all supported.
Yes — element symbols are case-sensitive (Co is cobalt, but CO would be read as carbon + oxygen). Use standard chemical notation: capital first letter, lowercase second letter where applicable, like Na, Cl, Mg.